dc.creatorJezek, Dora Marta
dc.creatorCapuzzi, Pablo
dc.creatorCataldo, Horacio Maximo
dc.date.accessioned2018-05-31T21:53:33Z
dc.date.accessioned2018-11-06T11:58:32Z
dc.date.available2018-05-31T21:53:33Z
dc.date.available2018-11-06T11:58:32Z
dc.date.created2018-05-31T21:53:33Z
dc.date.issued2016-02
dc.identifierJezek, Dora Marta; Capuzzi, Pablo; Cataldo, Horacio Maximo; Dark-soliton collisions in a toroidal Bose-Einstein condensate; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 93; 2; 2-2016; 1-11; 236011
dc.identifier1050-2947
dc.identifierhttp://hdl.handle.net/11336/46938
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1861728
dc.description.abstractWe study the dynamics of two gray solitons in a Bose-Einstein condensate confined by a toroidal trap with a tight confinement in the radial direction. Gross-Pitaevskii simulations show that solitons can be long-living objects passing through many collisional processes. We have observed quite different behaviors depending on the soliton velocity. Very slow solitons, obtained by perturbing the stationary solitonic profile, move with a constant angular velocity until they collide elastically and move in the opposite direction without showing any sign of lowering their energy. In this case the density notches are always well separated and the fronts are sharp and straight. Faster solitons present vortices around the notches, which play a central role during the collisions. We have found that in these processes the solitons lose energy, as the outgoing velocity turns out to be larger than the incoming one. To study the dynamics, we model the gray soliton state with a free parameter that is related to the soliton velocity. We further analyze the energy, soliton velocity, and turning points in terms of such a free parameter, finding that the main features are in accordance with the infinite one-dimensional system.
dc.languageeng
dc.publisherAmerican Physical Society
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/pra/abstract/10.1103/PhysRevA.93.023601
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevA.93.023601
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectDARK SOLITONS
dc.subjectBOSE-EINSTEIN CONDENSATES
dc.titleDark-soliton collisions in a toroidal Bose-Einstein condensate
dc.typeArtículos de revistas
dc.typeArtículos de revistas
dc.typeArtículos de revistas


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